Electric foot-warmer.



P. KUHN.

ELECTRIC FOOT WARMER. APPLICATION rrmn ssrr, 11, 911'.

1,025, 144.1 Patented M f 7, 1912.

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UNITED srnrns @IFFiC/E.

FRANK KUI-IN, OF DETROIT, MICHIGAN, ASSIGNOR T O AMERICAN ELECTRICAL HEATER COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

ELECTRIC FOOT-WARMER.

Specification of Letters Patent.

Patented May 7, 1912.

Application filed September 11, 1911. Serial No. 648,687.

To all whom it may concern Be it ltllOWl'l that I, FRANK Kvnx, a. citi- Zen of the United States of America, residing at Detroit, in the county of \V-ayne and State of Michigan, have invented certain new and useful lmprovenuaits in Electric Foot-ll'armeis, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to electric foot armors, being more particularly designed foruse in connection with motor vehicles,

and the invention consists in the construction as hereinafter set fortln In the di'awings,--Figure l is a perspective view of the device; Fig. 2 is a cross section thereof; Fig. 3 is a longitudinal section.

At the present day automobiles not in use are generally stored in garages which are usually provided with an electric service.

My improvement is particularly designed in View of this condition and consists ina suitable casingcontaining a heat absorbent material and an electric heating unit embedded therein with terminal connections by which itmay be quickly attached to an ordinary elect-ric service, as for instance a lamp socket. Thus the warmer may if desired, be left permanently in the vehicle and during the hours in which it is in the garage may be stored with heat for use during the hours of service.

.As preferably constructed, A is a hollow case which may be formed of an oval, tube of sheet metal having heads B at the 0pposite ends thereof with supporting feet C thereon. llxtending'between these heads are one or more connecting rods D, and sleeved upon. each of these rods is an insulation E around which the heating coil F may be placed. The space Within the body surrounding the heaters is then filled with some heat absorbing and preferably electrical insulating substance G, such for instance as ordinary silica sand. Suitable electric terminals H are provided for thc heating units and these are preferably arranged in a recess I formed in one of the heads-where they may be engaged by a suitable exten-. sion cord terminal. The casing A is preferablysurrounded by an outer cloth covering such as L. V

With the construction as described, Whenever, the auton'iobile is in the garage, the foot \varn'ier may be connected up with electric ser *ice, and as the current consumption by the electric units is preferablylow the heat will he gradually generated and stored in the mass of sand. Thus when the automobile is again taken out sutlieient heat will be stored to maintain the device warm for a comparatively long time.

What I claim as my invention is:

1. An electrically heated warming device comprising a casing consisting of and heads, and a tubular body, one of said end heads having a central recessed portion, cross rods positioned on opposite sides of said recessed portion and extending within said casing and connecting, said heads, insulating" sleeves upon said rods, an electrical resistance wound upon said sleeves, terminals forv said resistance positioned in said recessed portion,'and a filling;- of granular electrical insulating heat absorbing body surrouiuling said heating unit and filling said casing,

2. An electricallyheated warming device comprising a c: sing consisting of end heads and a tubular body, .fcet on'said end plates for holding said casing in inclined position rods connecting said end heads, said rods being' of greater length than said tubular body and extending tlnirethrou egh, an insulating sleeve upon said rods, an electrical heating unit upon said sleeve, and a filling of granular electrical insulating-heat absorbing body surrounding said heating unit. and filling said casing.

In testimony whereof in presence of two witnesses.

FRANK KUIIN.

lV-itnesscs:

JAMES 1. Baum, G. B. Bnnnlmr.

l allix my signature 

